Swaging-machine.



W. E. THOMPSON L W. A. LGKHAR''. SWAGING MACHINE.

APPLICATION FILED MAR. 5, 1913.

1,099,523. Patented June 9,1914.

12 SHEETS-SHEET L W. E. THOMPSON a W. A. LOGKHART.

SWAGING MACHINE.

APPLICATION FILED MAB.. 5, 1913.

Patented June 9, 1914.

A W. E. THOMPSON z W. A- LOGKHART.

SWAGING MMJHINE.V APPLIOATION FILED MAR. 5, 19134 Patented June 9, 1914.

12 SHEETS-SHEET 3.

W. E. THOMPSON n W. A. LOCKHART.

SWAG'ING MACHINE.

APPLIOATION FILED MAR. 5, 1913.

Patented June 9,1914.

12 SHEETS-SHEIT 4.

W. E. `THOMPSON & W. A. LOCKHART.

SWAGING MACHINE. APPLIOATION FILED MAR. 5, 1913.

Patented June 9,1914.

l2 SHEETS-SHEET 5.

W., E. THOMPSON & W. A. LOCKHART.

SWAGING MACHINE APPLICATION FILED MAIL. 5, 1913.

Patented June 9, 1914.

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W. E. THOMPSON dz W. A. LOGKHART.

SWAGING MACHINE.

APPLICATION FILED MAR. 5, 1913.

1,099,523. Patented June 9, 1914.

12 SHEETS-SHEET 7.

W. E. THOMPSON a W. A. LOCKHART. SWAGING MACHINE.

APPLICATION FILED MAR. 5, 191s.

1,099,523. Patented June 9, 1914.

12 SHEETS-SHEET 8.

W. E. THOMPSON L W. A. LGCKHART.

SWAGING MACHINE.

APPLIGATION FILED MAR. 5,

Patented June 9,1914.

l2 SHEETS-SHEET 9.

COLUMBIA PLANDGMPH co4.w.\SmNn1-0N. D. c.

W. E. THOMPSON L W. A. LOGKHART.

SWAGING MACHINE.

APPLICATION FILED MAR. 5, i913.

Patented Jun 9, 1914.

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W. E. THMPSDN a W. A. LOCKHART.

SWAGING MACHINE.

AFPLIGATION FILED MAR. 5, 1913.

Patented June 9, 1914.

12 SHEETS-SHBET ll.

Patented June 9, 1914.

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W. E. THOMPSUN & W. A. LGKHART.

. SWAGING MACHINE.

APPLICATION FILED MAR. 5, 191s.

CLUMBIA PLANOGHPH CO.,WASHINUTUN, D, C.

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ltl'NllTED STATES PATENT FFICE.

WARREN E. THOMPSON AND WLLIAM A. LOCKHART, 0l" SOUTHBRIDGE, MASSA-CHUSETTS; SAID LOCKHART ASSIGNOR TO SAID THOMPSON.

SWAGING-MAGHINE.

Speccation of Letters Patent.

`lla-tente(l J une 9, 1914.

Application filed March 5, 1913. Serial No. 752,108.

To @ZZ 107mm it may concern:

lle it known that we, WARREN E. TrioneF f son, a. citizen of the UnitedStates, and lVIL- mAM A. Loonrranr, a subject of the King of GreatBritain, both residing at Southbridge, in the county of ldlorcester andState of lttassachusetts, have invented a new and uset'ultwaging-Machine, of which the following is a specification.

This invention relates to a swaging machine which, while involvingprinciples that are capable of general use, is designed espe- 3 ciallyfor the purpose of swaging spectacle temples, particularly those of theso called pear tip type.

The principal objects of the invention are to provide a constructioncapable of producing a large number of temples in a minimum amount oftime, and without the eX- penditure of an excessive amount of power; toprovide a construction in which the operation entirely automatic frombeginning to end, and yet in which it can be controlled by the operatorat will; to provide a construction for these purposes which will take upvery little room in a shop and will be of simple construction incomparison with the output thereof; to provide a construction and .modeof operation by which the finishing dies particularly are much moredurable than has been the case heretofore, so that they can be used forlong periods of time for finishing the temples accurately to size.

More especially the invention involves arrangements of parts whereby thelubricating oil will flow by gravity between the dies insuch a wa v astoY cover all working sur'- faces; whereby the dirt and chips areautomatically carried off by gravity from the dies and under ordinarycircumstances cannot be left in the dies; whereby the lubrieating oil iscarried down through 'the spindle and out into a reservoir in the base,so that it will not be thrown out into the room, thus doing away withthe numerous oil catchers heretofore employed; whereby when the templesbreak oft' in the dies the breiten part can fall out by gravity in thesame way that the chips and dirt fall out, thus eliminating all chanceof the broken part coming into such position that it can injure themachine or strain the dies and rolls; whereby the heads are easilygotten at for the making of adjustments, changes, and

l l l i rc1l mirs` and the wear on the spindle is equalized; whereby atthe point where the greataccuracy has to be maintained there ispractically no strain caused by the spindle pressing laterally downwardand no end wear of the spindle; whereby the temple has no tendency tosag or rest harder on one de than on the other; and whereby the gene 'alarrangz'eu'ient is more convenient and compact than has been the caseheretofore in this type of machine. These advantages are secured by theuse of a vertical arrangement instead of the usual horizontalconstruction and by the combination with this vertical arrangement ofcertain features of construction as will appear hereinafter.

rThe invention also involves improvements in the stoel; guiding device;in the form of a stock guiding plate on the head; in the way ofarranging the. di anvils, cams, dogs, and operating rolls; in the way ofoperating a cam for bringing the dies into and out of operativeposition; in the arrangement of the spindle whereby the verticalpressure or weight of the heads is taken by an endthrust ball-bearing;in the way oftaking care of the oil running through the cam slots whichis accomplished by means of an oil ring; in the combination with thestationa ry slides and heads of a movable carrier to carry the stockintermittently and automatically from position for one operation to thenext; in the means for operating the same; in a spring chuck employedfor gripping the stock; in a friction between the chuck and reel or atthe entrance of the chuck for controlling the movement of the wire intothe machine; in a cam roll track connecting two cams for controlling thesequence of operations; in the specific form of cutting olf attachment;and in the arrangement of drilling head both for swaging temples and forgeneral use.

ln order to carry out these and other features of the invention, theparts are arranged in a novel manner and this arrangement alsoconstitutes a part of the invention. This arrangement involves number ofstationary die carrying heads with a movable carrier to carry the stockautomatically and intermittently from one head to the next, theperformance of a sequence of operations in the respective heads, anumber of slides with their respective cams working in cof operationwith the heads, a plurality of reels on one machine for feeding wire toa plurality of heads; and an arrangement of operating means therefor.

The invention also involves other improvements in combinations of partsand details of ern-struction as will appear hereinafter.

Reference is to be had to the accompanying drawings7 in which- Figure 1is a front elevation of a temple swaging machine constructed inaccordance with this invention; Fig. 2 is a front elevation on enlargedscale of a portion of the base with a part of the front broken away andshowing the mechanism in section on a central longitudinal plane; Fig. 3is a transverse sectional view of the same on the line 3-3 of Fig. 2;Fig. 4 is an elevation of the base with part-s broken away to showinterior construction (also showing thev table supported thereby) Fig. 5is an elevation of a portion of the upper part of the machine with partsin section on a central sectional plane; Fig. 6 is a plan of the partsshown in Fig. 5 with the top ring removed; Fig. 7 is a plan of thelocking bolt shown in Fig. 5; Fig. 8 is a sectional view on the line 8-8of Fig. 1 showing the interior parts in plan; Fig. 9 is a sectional viewon the line 9-9 of Fig. 8 showing the upper part of one of thecylindrical cams; Fig. 10 is a sectional view on the line 10-10 of Fig.8 on enlarged scale showing o-nly the bottom of the slide supportingparts; Fig. 11 is a plan of the parts shown in F 10 below t-hestationary plate; Fig. 12 is a front elevation of one of the wiremanipulating slides and connected parts; Fig. 13 is a sectional view ofthe same on the line 13-13 of Fig. 12; Fig. 14 is a plan of the machine;Fig. 15 is a horizontal sectional view on the line 15 15 of Fig. 1; Fig.16 is a front elevation of one of the die heads; Fig. 17 is a planthereof with the cover plates for the dogs and cams removed; Fig. 18 isa similar view of a portion thereof on enlarged scale with the coverplates in place; Fig. 19 is a sectional view on the line 19-19 of Fig.18; Fig. 2O is a horizontal sectional view on the line 20-20 of Fig. 1G;Fig. 21 is a side view of the top of one of the die spindles; 22 is asectional view on the line 22-22 of Fig. 1; Fig. 23 is an elevation ofthe pulleys and connected parts shown in Fig. 22; Fig. 24 is a plan ofthe drilling head; Fig. 25 is an elevation thereof; partly in section;Fig. 26 is a sectional view on the line 26-26 of Fig. 24; Fig. 2T is asectional view on the line 27-27 of Fig. 24; Figs. 28 to 32; inclusive;are diagrammatic views showing the various steps inthe operation of themachine; Fig. 33 is a view of a modification showing the carrier inplan; Fig. 34 is a side view thereof on enlarged scale partly in ection;Fig. 35 is a plan of one of the carrier heads; Fig. 36 is a view shcwingthe development of the driving cam for the carrier; Fig. 37 .is asimilar development of the driven cam; and Fig. 38 is a sectional viewof a detail of the driving cam.

The invention is sho-wn in the form of a machine mounted on a hollowbase 10 having a hollow vertical standard extendin upwardly therefromand surrounded by an integral flange 11 at the bottom providing anannular receptacle for receiving the oil which may drop from thebearings. This standard has a horizontal flange 12 at the top to whichis bolted a plate 13 having vertical legs 13a extending up from it tosupport a horizontal table 14 above. 0n the table are mounted a seriesof stationary heads 15, 15a; 15b; 15, 15d. Tn the present instance theseare shown as arranged in a circle near the circumference of the circulartable 14. .t the center of the table it supports a hollow stand 16 Fig.4 extending up- 'z rdly therefrcm and from a flange 1T belted at thecenter of the table. On the top of this stand it is provided with anintegral circular plate 18. The parts so far described are stationary.This plate as shown in Figs. 10 and 12 is provided with a circularoutwardly projecting flange 19 at the edge; on the top of which rests aiange constituting a part of a rotary bottom index ring 20. This ringcarries upright columns 21 which at their tops support a top index ring22; these parts constituting a rotary frame. This top ring is in theform of a plate and has at the center thereof a hub 23 (Fig. 5) throughwhich passes the end of a shaft 24 which is fixed to the top of theplate by a nut 25 and washer. This shaft therefore is supported by therotary frame and depends down through the machine to the bottom and isrotated for the purpose of rotating the frame 20; 21; 22.

Near the bottom of the base is a main driving shaft 30 provided with aworm 31 which drives a worm gear 32 (Figs. 1 and 22). This gear rests onand is Fixed to a flange cn the bottom of a collar which passes throughthe gear. The flange is fixed to the gear by a safety pin which isadapted to shear oif under heavy strains; but to transmit power underordinary circumstances. The top of the collar 34 is screw-threaded and anut 3G screwed down on it over the gear. This collar 34 is mounted onthe bettom of a steel sleeve 37 which extends up through the stationaryparts above described; and is supported at the top by a nut 38 screwedon the end of the sleeve and resting on a hub on a gear 39 which in turnrests on and is .fixed to a cam 40 by means of bolts 41. (Figs. 5 andThe gear 39 and cam 40 which are connected by the bolts 41 areadjustable with respect to each other @n account of the bolts pass' Vxgthrough curved slots 4 2 in the gear. 'T his cani rests on the plate 18so that the sleeve is supported therefrom.

@n the bottom of the flange 33 is fixed by screws 115 a cam shown inFigs. 2 and .lhis cam thus rotates with the worm gear 32 and during'each complete rotation it oscillates a hell-cranl 4'? in opposition tospring 48, moves a link t9 longitudinally and carries a spring-pressedratchet nach and forth over the teeth, of a. ratchet wheel 51, `which isfixed to the bottom of the shaft 2li. rllhis wheel 51 has as many teethas there are slides on the index rings, "-,vhich will lee explainedhereinafter. lt will he seen, therefore, that at each complete retationof the gear 32 and the sleeve 3i' 'the shaft 24. will rotate one-fifthof a revolution in the present case, there being;` hre teeth on theratchet wheel :31. The object of the cam 1-0 is to operate once dining;each completo revolution of the sleeve 53T, and therefore once during,`one-fifth of a revolution of the shaft 24.

For the purpose of locking the index rin periodically to the stationaryplate 18 a holt consisting of two parts and is shown in Fig. 7. The part54 has head 58 separated from it hy a neck 50 and entering a recess inthe part 55, in which is a spring' G0. The bottom index rinp,` isprovided .with tive recesses 01 for receiving` the holt at the aloovespecitied intervals, when it is stationary.

The gear 39 meshes with a plurality of gears 65, in this case tive innumber, arranged around it and supported on the stationary plate 18.Each of these gears is provided with a long cylinder ahove it designated(5G, Gtia, 60", 00, and (30, these cylinders are hollow and the cylindertit has a hollow central vertical shaft 0S) fixed to the plate 18 andextendinnv up through its huh 60h, l'nside of the shaft 69 is a verticalshaft 6"? extending up tlnough it and rotatingl with the saine. lach ofthe others has a shaft 07a. fixed to the plate 18, havingl a nut G8 atthe top for holding the same vertically. its shown in Fig'. 1 theseveral. cylinders are provided with cam grooves l0 in each of whichruns a roll 71 on a horizontal shaft '72. This shaft runs through ahloclr 73 which is provided with removable flanges 74 and is capable ofa slight sliding motion in a` slot .in a vertical slide 76. rlhere isone of these slides for each of the cylindrical cams and each oftheslides is guided in vertical ways in each `pair of columns 21 so as toreceive a vertical sliding motion from the cam. The lolock 73 is held uphy a springv 77. On the outer end of the shaft 72 is a lnoh 78 hy which.the shaft can he pulled out hy hand to relieve that slide from its cam.lt will he understood that the frame involving,1 the bottom ring 20 andthe top ring 22 with the columns 21 rotates intermittently around thefixed plate 18. Also the gears rotate on their own aries on the linedplate. Therefore, the cylindrical cams are rotated on axes which arelined and the rolls 71 which they operate are rotated around them, theserolls will automatically pass out of the con trol. of the c cams at acertain predetermined time. ,Sit this point they pass on segmentaltracks 79 which are adjustaloly supported from the stationary plate 1Soy columns 79a and serve to hold the slides at constant elevation whilethey pass from one cam to the next. itt a lower point on eachcylindrical cam is a projectingv pin S0. During the rotation of the camthis pin comes into contact with an arni S1 fixed on a shaft S2 andturns the shaft, thus turning a cam 83 which is lined thereon. This camis provided with two projecting surfaces which, upon the turningI of thesame, come into Contact with two levers 811 and s Ying them on theirpivots the result of this is to press down on a cross piece Sti whichrests in a slot in the slide on the top of a plunger 87. The levers andcross pieces are located in a recess behind a plate 80a. This plunger isprovided at the hottorn 'Witt a set of spring-jaws 88 which are conicalat the bottom and adapted to come into contact with av stationaryadjustable internal conical surface of the chuck S9 so that when theplunger i: forced down7 the jaws will be forced together by this sli eht motion.

@n the top of the index frame are mounted plurality of reels 00 for thewire to he operated. upon. @ne of these reels is shown for each of the:tive sections of the machine. lhe wire from each reel comes downthrough a liber bushinge 0l tixcd in a bracket 02 on the front of eachof the slides. The wire is guided tl lougli a slot t3 in. the slide anda slot. 9st in the side of the plunger so as to pass down through thejaws SS and out at the hottom thereof.

Although it has heen stated that the cams are of uniform shape, yet oneof them is connected with mechanism for performing a special operationnot igierforined hy the others. This is the cylincxical cani (-30. Atits top it is provided with a serios of sockets 90 for receiving' a pin07 on an arm 08 to which its shaft Gl is fixed. tlouser icntly, thisshaft rotates with the cam inside the sind or shaft (30 which fixed inthe plate 18 as shown in 10 and 11. it its lower end this shaft isprovided with two cams 100 and 101. The cani 100 operates a roll 102 ona slide 103. This slide is located horizontally on the bottoni of thestntiffmary plate 15% and rcciprocatos radially to a point under theslides as they coule around to th at point. The plate is provided atits` outer end. with a steel aw 10e.L for assisting' in the cutting` olfoperation, 'this cam 100 is circular through most of its periphery butis provided with a projecting leaf which also has a circular outersurface to hold the jaw in stationary position when it has beenprojected. lt is brought back to a stationary inner position by a spring113 when the projecting leaf on the cam passes by the roll 102. Theposition of the cams can be adjusted by the pin and socket connections96` 97. The slide is provided with a vertical shaft 110 extending downtherefrom and having a head on the bottom on which. is pivoted an arm111, said arm being provided with a cooperating cutting od jaw 112. Atits other end the spring 113 tends to keep a projection 114 on the leverin contact with the cam 101. This cam is provided with a long circularportion and with a projecting leaf 115 having an arcuate outer surfaceand also with a projection 116 extending beyond this arcuate surface.The operation of this cam when the leaf 115 moves the projection 114 isto swing the jaw 112 in far enough to grip it into the wire passed downfrom the slide above so as to hold the wire in fixed position. Then whenthe projection 116 comes against the projection 114, the jaw 112 isswung clear in to cut off the wire. An adjustment at 117 is provided forregulating the cut. Also mounted on the lever 111 is a nozzle 118connected with a tube 119 through which a blast of compressed air isdirected against the wire to dislodge it after it has been cut. Thisblast is always in operation, preferably. As the cutting jaw 112advances toward and into the wire it brings the nozzle almost intocontact with the temple and the instant it is cut 0H the air blows itclear of the head into any receptacle placed in position to receive it.

0n the steel sleeve 37 is a gear 120 (Figs. 2 and 15), which drives aseries of live gears 121, each provided with a cam 122 thereon. Thesegears and cams are mounted to rotate on vertical shafts 123 mounted onthe plate 13. Each of these cams operates a roll 124. Four of theserolls are mounted on levers 125 and the other one on a similar lever1251. The levers are pivoted on the vertical legs 13a. Each of thelevers 125 is provided with a yoke 126 working in a groove 127 in avertically adjustable slide 12S. This slide is movable up and down bythe operation of the lever on ar vertical die spindle 129 having anadjustable flange 129a at the bottom, resting on a ball bearing 130a ona U-shaped frame 130 depending from the table 14. This bearing thustakes the thrust. The vertical reciprocation of this slide causes aconical cam 131 thereon to operate a pair of die-operating levers 132which are provided with vertical shafts 133 oscillated by this motion.At the top of each of these shafts is a link 133a ope-rating a cam 134(Fig. 1S). This cam is of a general circular form but at one side isslabbed off, thus making it exceedingly strong, simple and inexpensive.1t is located in a groove formed in a hardened steel box 135diametrically arranged in the face of a horizontal circular soft steeldie plate 136, on the spindle 129. Between the two cams located in thisgroove on opposite sides of the central dieplate are a pair of dies 137,1371, 1371), and 137, behind which are anvils 13S for transmittingmotion from the cams to the dies. Beyond the cams are dogs 139, eachhaving a passage 140 therein and a fixed pin 141 located in the passage,but of smaller size than the passage. A. cover plate 142 is located overthe dies and anvil and a second cover plate 143 located over the dogsand cams. These plates are fixed to the die plate 136 and the roundedends of the dogs project beyond the edge of the die plate. The fourvertical die spindles 129 are each provided with a longitudinal passage144 to allow oil, chips, and broken pieces to fall down through. Tt alsoreceives the end of the temple while being swaged. Below the die head isan oil ring 145 on the spindle 129 for receiving the oil and directingit into the passage 144.

On the bottom of each shaft is a pulley 146, and a fly wheel 147. Thesepulleys are rotated by a belt 143 which also passes around a pulley 149which is integral with a pulley 152. The pulley 152 is rotated by a belt151 thus rotating 149 also. These pulleys rotate on a shaft 150. Anidler pulley 153 is shown for keeping the belt 143 tight, this idlerpulley being mounted on a shaft 154 which is fixed on a frame 155 freeto swing on the shaft 150 and adapted to be held in adjusted positionsby a toot-h 156 on the frame and a curved rack 157 pivoted on the frameand held against the tooth by a spring 158. 1t will be seen thereforethat the die plate and spindle have a constantmotion of rotation.

Fixed in stationary position surrounding each die plate and spindle is asteel ring 160 inside of which is a rotative roller cage 1600 comprisinga steel ring having a series of hardened steel rolls 161 thereinsurrounding the die plate. These rolls project beyond the surface of thecage outwardly against the ring 160 and also inwardly so as to beengaged by the projecting ends of the dogs in succession as the latterrotate with the die plate.

The wire (or blanks) is fed down to the space between the dies through aguide 163 which revolves with the spindle. This guide is located on theplate 142 which keeps the dies in position in the slot 135. It is to beunderstood that dierent dies are located in the different heads as willappear hereinafter.

The lever 125a is operated like the other levers, but it is maintainedin a position unist Ascrews engage a pair of slides 182.

der a. vertically movable drill spindle 170 shown in Fig. 25. 'lhisdrill spindle is provided with a pulley 171 operated by a belt 172independently of the other mechanism and is mounted in a reciprocating`carrier 173 which slides vertically on the traine. 1t is provided with adrill head 175 which carries the drill 176. rii'he motion ot 'this slideup and down carries the drill with it. This drilling operation is forthe purpose et.' forming a. hole in the end oftl the stock. rllhispermits the end to be rounded over afterward in a manner which willappear hereinafter. The motion of the slide also operates a pair oflevers 180. Each of these levers is provided with a screw 181 whichrlfhesc slides are adapted to reciprocate toward and from each other ina horizontal plane and terminate in jaws 183. These jaws are providedwith a recess 184twhich is smaller at the top than at the bottom so asto be capable of gripping the wire after it has been worked down by thedies. '.llhe wire is guided into position to be engaged by these jaws bya conical guide 185. The jaws are provided with a spring 186 for torciugthem apart when not positively operated by the movement. of the slide173. T he slide 17? is also provided with a cam 187 adapted to entheconical end of the horizontally slidable pin 188 as the slide moves upand down. rlhis pin engages the end of a lever 189 which through a screw190 operates a trimming slide 191 that moves along the bottom et' thejaws 183 and cuts oli the wire to proper length. 1t will be observedthat in 27 the slide 173 is at its highest position. is it comes down itfirst forces the pin 188 out in opposition to a spring 192 and thenallows it to come in again when the cam 187 passes under the pin 188,and on the ret-urn motion oit the slide 173 the pin again forced out.The first reciprocation ot the pin cuts ott the wire to length. and thesecond reciprocation cuts ott any bur that may have been formed by theentrance ot the drill into the end oi the stock when the slide is at itshighestI position.

Having described the n echanism shown in the irst, twenty seven figures,we will new proceed to describe the operation of the machine for swagingand tipping teinples, reference being had especially to Figs. Q8 to 32.The stock in the form oi? a continuous piece ot wire mounted on thereels is gripped. by the cutting oit jaws 1011 and 1153 which partly cuttl'irough it. The wire is thus held from moving by these jaws. The chuck89 is now released, the slide pulled up away 'from the cutting ol'f jawsto the required distance to space the new blank correctly` and then thechuck tightens. The cutting off jaws now close over the stock and cut itoit completely. Then they move back out of the movement of the slide.The previously iinished temple that has been out oitl'l now is dislodgedby a blast otl air from the nozzle 118. The slide now mores 'trom itsformer position into line with the neat operative head. At this time theindex traire starts to rotate and all the rolls 71 pass out of theirrespective cam grooves oit the cams GG, etc., on the tracks 79. Theyturn around eventually through one-iit`th oi? a revolution7 at whichpoint they enter the cani grooves ci the next cylinder cams. Thecylinder cam which engages the roll having control of the new blank justcut ed is of such form that itinoves it down into the dies 137a (Fig.28) et the first operative head 15a. called breaking-down dies, and thecylindrical cani which controls the motion of the blank at this timebrings the stock down. rllhen it is held at rest until the dies havemoved in their full movement. Then the slide moves down still fartherwhile 'the dies operate until a space is reduced suthcient to allow thefinishing dies in the next head to close. This preliminary break-downoperation having been completed the tapered sleeve 181 on that. head israised to operate the cams 1341 and release the dies 137'. Just as thisoperation is completed the cam gro-ove on the cylinder above operates toraise the chuck holdingl the blank and draw it out of these dies, theslide having thus been raised toits uppermost position. The next partialrotation now takes place and this roll 71 now moves along out ot thecani groove on the track 79 and over into the cam groove of the nextcam. This cam now assumes control and moves the blank down into theiirst iininshing dies 137b in the next head 15h. These dies are operatedin a similar manner for the purpose of tinishing the blank down nearlyto size, as for example from .002 to .O05 o1 an inch larger than theultimate size of the temple. in doing this the chuck in this slide movesthe temple down and back, while the dies are thrown out oit operation bytheir cams 181- as the chuck rises. The roll .controlling the slide nowpasses along the track 79 to the next cylindrical cam which now takes itand jliertorms the operation shown in Fig. 80, called the secondlinishing operation, by means of dies 187 in the head 15. rlhisoperation is performed throughout the entire length et the reduced partof the temple and brings it down to its linished diameter. The use oithis additional head gives a very smooth temple. and dies stand manymore times the amount ot work than they would il" they were forced to dothe whole linishing process. Then in a way which has been describedpreviously, the temple blank is released trom these dies and carriedover into the control of the next cylindrical cam rlhese are whichimmediately operates to bring it down into the guide 185 shown in Figs.25, 26 and 31 on the head 15d. Then the 183 are caused to grip on thepart. of the temple having the small diameter and the taper. This isdone by the rise of the slide 173. T'he chuck is now released and theslide moved up7 thus pulling the taper into the gripping jaws. The wireat this time is held by the friction. The stock is slipped in this wayso as to insure the temples coinciding with the tip hammering dies 137and all coming out in uniform lengths. This is necessary on accountofhard spots, un-

ven annealing and other irregularities often found in the stock. Thistrimming slide 191 trims the ends off and the drill 176 enters the end Bof the blank to produce a recess therein. Upon the withdrawal of thedrill the trimming slide again operates on the end of the blank to takeoff any bur that may be left. Then it withdraws again and immediatelythereafter the jaws 183 draw back away from each other so as to releasethe blank. Tt is then take-n to the control cf the next cylindrical camand in that ay pair of dies 137 operate in the same way as the threesets of dies previously described, to hammer the tip on the end of thetemple to shape by closing in the end over the hole drilled therein.This may be considered as a hammering operation for the purpose ofshaping the bead B of the` temple. As soo-n as this operation iscompleted the finished temple is moved up to the cutting o attachmentshown in Figs. 10 and 11 which then grips the opposite end of thetemple. The slide then moves up to space the next blank, the chuckclosed7 and the jaws 101 and 112 operate to cut clear through thetemple, and release it. Then the finished temple is forced from themachine by a blast of air blowing constantly through the nozzle 118.

It will be understood, of course? that all the operations shown in Figs.28 to 32 are performed simultaneously, under the best workingconditions. There are five temple blanks being operated uponsimultaneously in the machine, each being subjected to one of theseveral operations shown in these figures, so that each of thecylindrical cams is always controlling the operation of one blank andeach of the sets of dies is operating on a blank. It will be understoodalso of course, that while we have described a definite number of theseoperations, namely five, and tive feeding slides as well as fiveoperating heads, yet in classes of work which require more or lessfinishing or roughing operations the number of slides and heads will bevaried accordingly.

Another way in which a part of the invention can be carried out is shownin the last six figures of the drawings. This modification is designedmainly for the purpose of securing substantially the same resultswithout providing any relative horizontal motion between the series ofdie heads and the blank operating slides, and according to thismodication the heads 15, 15a, etc., are mounted in stationary positionon a table 1st as before and the slides are operated as before throughthe sleeve 377 gears 39 and 65, and cams 660. Tn this case the gear 65and cams 660 are mounted on a stationary plate 18, which takes the placeof the stationary plate 18 of the other form shown. and the slides,although not shown in these figures, are constructed substantially as inthe first modification sho-wn.

lTheir vertical operation is also the same,

but they have of course no rotary motion. The cams 660 are shaped toprovide the necr` essary dwell instead of having that provided for bythe plates 79 in the first form. fn this case, however, only o-ne reelfor wire is necessary, as all the wire is fed down at one point and byone slide. Tn this case also the wire is fed down to the head 15 inwhich the temple is broken down, cut off and the new blank spaced in themanner set forth in describing the first modication. The temple is drawnup out of this head 15a and gripped by a rotary carrier which rotatesone-fifth of a revolution so as to present it to the next slide, overthe head 15b. Here the first finishing operation is performed in themanner previously described. Then the temple is raised by that slide7then it is again gripped by the carrier which takes it to the secondfinishing head 15c where it is again released by the carrier and grippedby the slide and operated upon as before. ln the same manner it is takento the drilling head 15d and drilled and then taken to the head 15whereV the tip is hammered and thereaftery it is discharged from themachine in a manner which will appear. Tt will be seen that each one ofthe cams 660 in this case is shaped for the )urpose of performing itsspecial operations, as was the case in the other form described, but inthis case the steps of the operation are slightly different and the camsare changed accordingly. These cams are not illustrated in detail, asthe description already given is thought to be sufficient.

Referring now to the last six figures, it will be seen that the sleeve37 which operates the cams 660 and which constantly rotates, is providedwith a driving cam 200 keyed thereto. This cam has a cam groove 201 inwhich operates a roll 202 on a shaft 203 which shaft is carried by avertically reciprocable slide 204. This slide is mounted between thesurfaces of the cam 200 and a driven cam 205 which has cani grooves20S-207 for receiving a roll 208 on the outer end of the shaft 203. Bothof these titi Cams are of cylindrical form, the groove 202 of the innercam being located in the outer convex sui-tace thereof, while thegrooves 20p- 207 on the outer cam are located in the inner concavesurface thereof. The outer cam is mounted so as to be capable of anintermittent rotary motion around the center of the shaft 3T, but isincapable of any vertical motion. For this purpose it is shown ascontained between two collars 209 on which its ends bear. @n the cam 203is fixed a carrier 2l() having a series of live radial arms 2117 eachbeing provided with a head 212 having fixed jaw 213 and a spring-pressedjaw 911i. Between these jaws is a passage 215 which is tangential. The jaw 214` is pressed tangentially by a spring 216. The passage 215 isprovided with a small enlargement 217 for gripping a temple and with alarger enlargement 218 behind it through which the temple is adapted todrop. The outer ends ot the jaws 213 and 21/1 are beveled oliv1 to guidethe temple into the slot 217. The operation oit the driven cam will beunderstood from reterence to the last three lign 1es of the drawings.rit the highest point in the cam groove 201. namely the point 201% thedouble roller is stationary tor a short period and it will be obviousthat the outer roll is in the highest extension 20dL ci one groove 20Gon the outer cam. lt is at this time that the chuclr held by the firstslide advances and grips the work. Now as the sleeve 37 continues torotate, the roll 202 enters a slanting portion 201b of the cam slot andis forced down with a rapid motion. This causes the roll 208 also tomove down oi course and this forces the driven cam 205 to move backwardto the right until the roll 208 enters the vertical slot 207 whichconstitutes a branch of the cam groove 206. This occurs when the roll202 enters a long straight gradually slanting portion 201c of the camgroove 201. Tieretore, it will be seen that during this part ot thecomplete rotation of the sleeve 37, that is during about two-thirds of acomplete rotation, the rolls are forced gradually downward from the topo'f the slot 207 to the bottoni thereof and during that period the cam205 and consequently the carrier, are stationary. Tt is during thisperiod that the operations are carried on upon the stock by the severaldie ieads 15, etc. 1When the rolls reach the bottom of their motion, theroll 202 enters an oppositely and rapidly inclined portion 2011 of thecam slot and at the same time the roll 208 passes beyond a spring 220 inthe slot 207. Consequently the rise ot the two rolls does not cause theroll 208 to move bach up the slot 207 but causes it to move 'forwardalong the next slot 206. As the torce supplied to the rolls by thedriving cam 200 operates only to raise the rolls, it

is obvious that this motion will force the driven cam around to the leftin Fig. 37, that is torwardly. This causes the carrier to move frombetween the heads for the purpose ot gripping the work. Having made thismotion, the roll 202 encounters a horizontal portion 201e of its camgroove and thus leaves the carrier in stationary position for a shorttime. Tt is now that the clinchr jaws open and move back accord ing tothe arrangement described in connection with the other form ot theinvention. This having been accomplished, the roll 202 enters anotherincline 201f and the carrier proceeds to complete the taking oi: thework from one head to the next. Another dwell 201g is encountered halfway along this incline 201f and this euses the carrier to come to a fullstop halt way between two ot the heads to permit a finished temple todrop from the carrier. This having been accomplished, the carrierproceeds to the end or' this motion when the rolls are at the top oitheir motion and in the position 201L and 206a ready to commence thecycle ot' operations again. The way in which the temple is removed fromthe carrier is very simple. On the bottom o'l' the stationary plate 18is a vertical rod 222 located hali way between the two heads 15 and 15a.This is provided with a pair of horizontal knockout wires 223 locatedone below and the other above the position oi' the carrier head. lhenthe temple carried in the slot 217 comes into contact with these wires223 which are in liXed position, they torce. the spring 216 to yield andas the carrier advances positively, the temple is forced back along' theslot 215 into the enlargement 218. Tt is then not supported at all andis free to drop and it is at that point that the dwell occurs caused bythe horizontal portion 201g of the driving cam slot. The details of theoperations on the blank need not be described at this point as they aresubstantially the same as those described before, except that thecutting oil operation occurs at a dilierent point. By this arrangement,however, the rotation ot the entire set or slides is avoided and themechanism simplified in some respects but the general results obtainedare otherwise the same.

Although we have illustrated and described only two forms in which theinvention is carried out, we are aware of the :tact that many othermodifications can be made therein without departing from the scope ofthe invention as expressed in. the claims. llherefore, we do not wish tobe limited to the details oit construction herein shown and described,but

that we do claim is 1. In a swaging machine, the combination of a headhaving a vertical passage therein extending down from the top, means forintroducing a blank into said passage from the top, means for breakingdown the blank and lengthening the same while in the passage, means forthen moving the blank down farther while the breaking down means isoperating, means for rendering the breaking down means inoperative, andmeans tor then withdrawing the blank 'from the top.

2. In a swaging machine, the combination of a head having a verticalpassage therethrough extending down from the top, means for introducinga wire into said passage from the top con'iprising jaws for gripping thewire and moving it along, means for gripping the blank at a distancefrom the jaws, means Jfor then cutting 0H the blank beyond the jaws, andmeans for swaging the blank while held by said jaws.

3. In a swaging machine, the combination of a head having a verticalpassage therethrough extending down from the top, means for introducinga wire into said passage from the top comprising jaws for gripping thewire and moving it along, means for cutting off the blank, a second headhaving a vertical passage therein extending down from the top providedwith reducing dies therein, and means whereby the blank previously cutoff is introduced into the second head from the top.

4. In a swaging machine, the combination of a head having a passage,means for introducing a blank into said passage from one end, means forbreaking down the blank and lengthening the same while in the passage,means for then moving the blank along farther in the same directionwhile the breaking-down means is operating, means for rendering thebreaking-down means inoperative, and means for then withdrawing theblank from the end into which it was introduced.

5. In a temple swaging machine, the combination of a set of stationaryheads each provided with a vertical passage extending down from the topthereof, a series of slides arranged above said heads and each adaptedto move from one head to another, said slides having means for grippinga blank to be operated upon and holding it in vertical position, meansfor individually operating said slides vertically to introduce blanksheld thereby into the heads and thereafter withdraw them therefrom, andmeans in the heads for operating on the blanks.

6. In a temple swaging machine, the combination of a set of headsy eachhaving a passage therethrough extending down from the top thereof, aseries of relatively movable slides of a number equal to the number ofheads, each having means for gripping a blank, means for lowering saidslides to introduce the blanks therein into the respective heads, meansfor cutting ofi the work, means carried by one head for breaking downthe stock of a blank introduced therein, and means carried by anotherhead for finishing that part of the blank introduced therein which hasbeen broken down.

7. In a temple swaging machine, the combination of a set of heads, aseries of relatively movable slides of a number equal to the number ofheads, each having means for gripping a blank, means for moving all 01":said slides to introduce the blanks therein into the respective heads,means for cutting oilE the work, means carried by a head for performinga preliminary breaking-down operation on a blank introduced therein,means carried by another head Jor reducing the same portion of the blankapproximately to size, and means carried by another head for finishingthe reduced portion of the blank.

8. In a temple swaging machine, the combination of a stationary set ofdie heads, means connected with each of said die heads for performing'operations on blanks, said die heads being arranged in verticalposition, a horizontally movable support above the die heads, and aseries of vertically movable slides on said support, each having meansfor gripping a blank and moving it down into one of the heads.

9. in a temple swaging machine, the combinaticn of a stationary set ofdie heads, means connected with each of said die heads for performingoperations on the blanks, said die heads being arranged in verticalposition, a horizontally movable support above the die heads, a seriesof vertically movable slides on said support, each having means forgripping a blank and moving it down into one of the heads, means on saidsupport. for simultaneously lowering said slides and then raising them,and means for holding them raised and moving each one along te anotherhead while in raised position.

l0. Inateinple swaging machine, the combination of a set of die heads,means connected with them for operating on blanks held therein, a framemovable in a path adjacent tothe die heads, a set of slides on saidframe, means for moving said trame intermittently to carry each slidefrom one head to another, and means on said frame for moving all theslides back and forth when in registration with the heads.

1l. In a` temple swaging machine,the combination of a die head. meansfor swaging blanks held therein, a frame movable in a path above saidhead, a set of slides on the frame, means for moving the frame over thehead, and means for raising and .lowering the slides, the last namedmeans comprisa series of rotary mounted to rotate on vertical stationaryaxes, means for constantly rotating said cams, and means :tor connectingeach cam in succession with the slides.

